| 地形三维场景实时变换及可视化方法研究 |
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| 引用本文： | 李玉东,张军.地形三维场景实时变换及可视化方法研究[J].测绘工程,2010,19(6):43-47. |
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| 作者姓名： | 李玉东 张军 |
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| 作者单位： | 辽宁工程技术大学测绘与地理科学学院,辽宁阜新123000;中国测绘科学研究院,北京100039;中国测绘科学研究院,北京,100039 |
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| 摘 要： | 地形数据的三维可视化技术一直是3DGIS领域一项重要的研究技术。从地形实时渲染的需求出发,提出大地坐标系下的多分辨率地形组织模型,并对可视化过程中的坐标空间变换方法进行研究,提出一种适合大区域地形可视化的坐标空间变换方案,使可视化的三维地形场景尽可能真实反映其自然的分布形态,使影像纹理、地物与地形之间进行精确的映射与匹配。
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| 关 键 词： | 实时三维可视化 坐标空间变换 纹理映射 地物匹配 |
The real-time transformation and visualization method of large-scale terrain 3D scene |
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| LI Yu-dong,Zhang Jun.The real-time transformation and visualization method of large-scale terrain 3D scene[J].Engineering of Surveying and Mapping,2010,19(6):43-47. |
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| Authors: | LI Yu-dong Zhang Jun |
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| Institution: | 1.School of Geomantic,Liaoning Technical University,Fuxin 123000,China;2.Chinese Academy of Surveying and Mapping,Beijing 100039,China) |
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| Abstract: | Terrain 3D visualization is always a hot research spot in 3DGIS,this paper,with the needs of terrain＇s real-time rendering,combined with the multiple solution organization methods of terrain model under geographical coordination system,made a serious research on spatial transformation methods in visualization pipeline,and put forward a resolution on large scale terrain＇s transformation.Besides,the methods of precise mapping and matching between image texture,features and terrain was established,so that the visualized terrain 3D scene can reflect their real and natural distribution. |
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| Keywords: | real-time 3D visualization spatial transformation texture mapping feature distribution |
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